Home / 26,430.32-36,511.80-21,118.16

Finding the Fourth Proportional to 26,430.32, 36,511.80 and 21,118.16

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Solution

The fourth proportional to 26,430.32, 36,511.80 and 21,118.16 is: 29,173.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,430.32 : 36,511.80 = 21,118.16 : x
  2. Step 2: Convert to fraction form
    26,430.32/36,511.80 = 21,118.16/x
  3. Step 3: Cross multiply
    26,430.32x = 36,511.80 × 21,118.16
  4. Step 4: Simplify right side
    26,430.32x = 771,062,034.29
  5. Step 5: Solve for x
    x = 771,062,034.29/26,430.32
  6. Step 6: Final answer
    x = 29,173.39

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.